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  • How to Capture Screenshot in Swift

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    In order to take a screenshot of a screen and save the captured screenshot to library, use the below steps:

    1.  Add the "Privacy - Photo Library Usage Description" key to info.plist

                   

      <key>Privacy - Photo Library Usage Description</key>
      <string>YOUR CUSTOM USAGE DESCRIPTION GOES HERE.</string>

          

    2. In your controller add the below function to take screenshot:

       func captureScreenshot(){
                let layer = UIApplication.shared.keyWindow!.layer
                let scale = UIScreen.main.scale
                // Creates UIImage of same size as view
                UIGraphicsBeginImageContextWithOptions(layer.frame.size, false, scale);
                layer.render(in: UIGraphicsGetCurrentContext()!)
                let screenshot = UIGraphicsGetImageFromCurrentImageContext()
                UIGraphicsEndImageContext()
                // THIS IS TO SAVE SCREENSHOT TO PHOTOS
                UIImageWriteToSavedPhotosAlbum(screenshot!, nil, nil, nil)
      }

         The first time you launch the app and call this method, the iOS device will ask you the permission to access the photos.

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